A common signature of marine invasions worldwide is a significant loss of parasites (= parasite escape) in non-native host populations, which may confer a release from some of the harmful effects of parasitism (e.g., castration, energy extraction, immune activation, behavioral manipulation) and possibly enhance the success of non-indigenous species. In eastern North America, the notorious invad...

Fasciola hepatica is a parasitic trematode that infects a wide range of mammalian hosts, including livestock and humans, in temperate and tropical regions globally. This trematode causes the disease fascioliasis, which consists of an acute phase (≤ 12 weeks) during which juvenile parasites migrate through the host liver tissues, and a chronic phase (> 12 weeks) following the establishment of ad...

the pond snail lymnaea auricularia serves as an intermediate host for many digenian species. in west azerbaijan province, northwestern iran, the cercariae infection investigation was undertaken in l. auricularia from may to november 2010. of 6759 collected lymnaeid snails, 370(5.5%) l. auricularia snails were identified. cercariae infection was found in a number of 276 (74.56 %) snails. the res...

Climate is a key driver of parasite transmission and disease dynamics. For trematode parasites, the high temperature sensitivity of transmission between first and second intermediate hosts may lead to higher infection rates with global warming, or spatially with warmer latitudes. However, spatial heterogeneities are common, and local factors are known to play crucial roles in determining infect...

The present investigation was carried out seasonally from October 2008 to September 2010, to study the impact of helminth parasites of catfishes of Lucknow. The fish fauna viz., Clarias batrachus, Heteropneustes fossilis, Wallago attu, Mystus vittatus and Rita rita were carried trematode, cestode, nematode and acanthocephalan parasites communities singly or mixed. The collected fish species inc...

In order to determine potential definitive hosts of the digenetic trematode, Bolbophorus damnificus, two American White Pelicans (Pelecanus erythrorhynchos), two Double-crested Cormorants (Phalacrocorax auritus), two Great Blue Herons (Ardea herodias), and two Great Egrets (Ardea alba) were captured, treated with praziquantel, and fed channel catfish (Ictalurus punctatus) infected with B. damni...

Megalodiscus temperatus (Stafford, 1905) is a common paramphistome trematode of North American amphibians with a two host life cycle and has been reported to infect frogs and rarely tadpoles. In this study we document the alternative life cycle strategy of M. temperatus in tadpoles and metamorphosed anurans. We show through field work and experimental infections that M. temperatus can establish...

A histochemical study of the progenetic trematode Alloglossidium renale has demonstrated the absence of any secreted material between the adult worm and the host (freshwater shrimp) antennal gland tubules. Host tissue is affected only by the compression, abrasion, and ingestion by the parasite, and host tubule cells near the worm have the same staining patterns as those distant from the parasit...

The hot-spots of transmission food-borne zoonotic trematodes in northern Vietnam have been known as the integrated fish-livestock (VAC- Garden, Fish pond, Poultry shed) ponds. A cross-sectional study was conducted Ha Noi capital and Yen Bai province to investigate trematode larval infections (cercariae) freshwater snails these areas. Snails were collected from 35 VAC ponds, including 25 grow-ou...